org.jfree.chart.LegendItem Java Examples

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");
    dataset1.addValue(25.0, "R5", "C1");
    LevelRenderer r = new LevelRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * Tests cloning for a plot where the fixed legend items have been
 * specified.
 */
@Test
public void testCloning3() throws CloneNotSupportedException {
    XYPlot p1 = new XYPlot(null, new NumberAxis("Domain Axis"),
            new NumberAxis("Range Axis"), new StandardXYItemRenderer());
    LegendItemCollection c1 = new LegendItemCollection();
    p1.setFixedLegendItems(c1);
    XYPlot p2 = (XYPlot) p1.clone();
    assertTrue(p1 != p2);
    assertTrue(p1.getClass() == p2.getClass());
    assertTrue(p1.equals(p2));

    // verify independence of fixed legend item collection
    c1.add(new LegendItem("X"));
    assertFalse(p1.equals(p2));
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");        
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");        
    dataset1.addValue(25.0, "R5", "C1");        
    BoxAndWhiskerRenderer r = new BoxAndWhiskerRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * Returns a (possibly empty) collection of legend items for the series
 * that this renderer is responsible for drawing.
 *
 * @return The legend item collection (never <code>null</code>).
 */
@Override
public LegendItemCollection getLegendItems() {
    if (this.plot == null) {
        return new LegendItemCollection();
    }
    LegendItemCollection result = new LegendItemCollection();
    int index = this.plot.getIndexOf(this);
    XYDataset dataset = this.plot.getDataset(index);
    if (dataset != null) {
        int seriesCount = dataset.getSeriesCount();
        for (int i = 0; i < seriesCount; i++) {
            if (isSeriesVisibleInLegend(i)) {
                LegendItem item = getLegendItem(index, i);
                if (item != null) {
                    result.add(item);
                }
            }
        }

    }
    return result;
}
 

/**
 * Returns a (possibly empty) collection of legend items for the series
 * that this renderer is responsible for drawing.
 *
 * @return The legend item collection (never <code>null</code>).
 */
@Override
public LegendItemCollection getLegendItems() {
    if (this.plot == null) {
        return new LegendItemCollection();
    }
    LegendItemCollection result = new LegendItemCollection();
    int index = this.plot.getIndexOf(this);
    XYDataset dataset = this.plot.getDataset(index);
    if (dataset != null) {
        int seriesCount = dataset.getSeriesCount();
        for (int i = 0; i < seriesCount; i++) {
            if (isSeriesVisibleInLegend(i)) {
                LegendItem item = getLegendItem(index, i);
                if (item != null) {
                    result.add(item);
                }
            }
        }

    }
    return result;
}
 

public LegendItemCollection createThresholdLegend(Plot plot){
	logger.debug("IN");

	LegendItemCollection collection=new LegendItemCollection();

	for (Iterator iterator = thresholds.keySet().iterator(); iterator.hasNext();) {
		Double thres = (Double) iterator.next();
		TargetThreshold thresTarg=thresholds.get(thres);
		String thresholdName= thresTarg!=null ? thresTarg.getName() : "";

		Color color=Color.BLACK;

		if(thresTarg.getColor()!=null){
			color=thresTarg.getColor();		
		}
		// could add bottom only if used
		LegendItem item=new LegendItem(thresholdName, thresholdName, thresholdName,thresholdName, new Rectangle(10,10),color);
		collection.add(item);
	}
	logger.debug("OUT");
	return collection;
}
 

/**
 * Update legend
 */
private void updateLegend() {
	_chart.removeLegend();
	final LegendTitle legend = new LegendTitle(() -> {
		final LegendItemCollection collection = new LegendItemCollection();
		if (_currentMode == DisplayMode.TIME) {
			collection.add(new LegendItem(Legend.LATENCY.label, null, null, null, new Rectangle(30, 20), Legend.LATENCY.color));
			if (_dnsLookup && _services.isEmbeddedTRAvailable() && !Env.INSTANCE.isUseOSTraceroute()) {
				collection.add(new LegendItem(Legend.DNS.label, null, null, null, new Rectangle(30, 20), Legend.DNS.color));
			}
		} else {
			collection.add(new LegendItem(Legend.DISTANCE.label, Legend.DISTANCE.color));
		}
		return collection;
	});
	legend.setPosition(RectangleEdge.BOTTOM);
	_chart.addLegend(legend);
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");
    dataset1.addValue(25.0, "R5", "C1");
    AreaRenderer r = new AreaRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");
    dataset1.addValue(25.0, "R5", "C1");
    BoxAndWhiskerRenderer r = new BoxAndWhiskerRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");
    dataset1.addValue(25.0, "R5", "C1");
    BarRenderer r = new BarRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");
    dataset1.addValue(25.0, "R5", "C1");
    AreaRenderer r = new AreaRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * Fetches the legend items and checks the values.
 */
@Test
public void testGetLegendItems() {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    dataset.addValue(35.0, "S1", "C1");
    dataset.addValue(45.0, "S1", "C2");
    dataset.addValue(55.0, "S2", "C1");
    dataset.addValue(15.0, "S2", "C2");
    SpiderWebPlot plot = new SpiderWebPlot(dataset);
    JFreeChart chart = new JFreeChart(plot);
    LegendItemCollection legendItems = plot.getLegendItems();
    assertEquals(2, legendItems.getItemCount());
    LegendItem item1 = legendItems.get(0);
    assertEquals("S1", item1.getLabel());
    assertEquals("S1", item1.getSeriesKey());
    assertEquals(0, item1.getSeriesIndex());
    assertEquals(dataset, item1.getDataset());
    assertEquals(0, item1.getDatasetIndex());

    LegendItem item2 = legendItems.get(1);
    assertEquals("S2", item2.getLabel());
    assertEquals("S2", item2.getSeriesKey());
    assertEquals(1, item2.getSeriesIndex());
    assertEquals(dataset, item2.getDataset());
    assertEquals(0, item2.getDatasetIndex());
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");
    dataset1.addValue(25.0, "R5", "C1");
    CategoryStepRenderer r = new CategoryStepRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");
    dataset1.addValue(25.0, "R5", "C1");
    CategoryStepRenderer r = new CategoryStepRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * Returns the legend items for the plot.  Each legend item is generated by
 * the plot's m_Renderer, since the m_Renderer is responsible for the visual
 * representation of the data.
 *
 * @return The legend items.
 */
@Override
public LegendItemCollection getLegendItems() {
    if (this.fixedLegendItems != null) {
        return this.fixedLegendItems;
    }
    LegendItemCollection result = new LegendItemCollection();
    int count = this.datasets.size();
    for (int datasetIndex = 0; datasetIndex < count; datasetIndex++) {
        XYDataset dataset = getDataset(datasetIndex);
        PolarItemRenderer renderer = getRenderer(datasetIndex);
        if (dataset != null && renderer != null) {
            int seriesCount = dataset.getSeriesCount();
            for (int i = 0; i < seriesCount; i++) {
                LegendItem item = renderer.getLegendItem(i);
                result.add(item);
            }
        }
    }
    return result;
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    DefaultCategoryDataset dataset0 = new DefaultCategoryDataset();
    dataset0.addValue(21.0, "R1", "C1");
    dataset0.addValue(22.0, "R2", "C1");
    DefaultCategoryDataset dataset1 = new DefaultCategoryDataset();
    dataset1.addValue(23.0, "R3", "C1");
    dataset1.addValue(24.0, "R4", "C1");
    dataset1.addValue(25.0, "R5", "C1");
    LevelRenderer r = new LevelRenderer();
    CategoryPlot plot = new CategoryPlot(dataset0, new CategoryAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, dataset1);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("R5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * Fetches the legend items and checks the values.
 */
@Test
public void testGetLegendItems() {
    DefaultCategoryDataset dataset = new DefaultCategoryDataset();
    dataset.addValue(35.0, "S1", "C1");
    dataset.addValue(45.0, "S1", "C2");
    dataset.addValue(55.0, "S2", "C1");
    dataset.addValue(15.0, "S2", "C2");
    MultiplePiePlot plot = new MultiplePiePlot(dataset);
    JFreeChart chart = new JFreeChart(plot);
    LegendItemCollection legendItems = plot.getLegendItems();
    assertEquals(2, legendItems.getItemCount());
    LegendItem item1 = legendItems.get(0);
    assertEquals("S1", item1.getLabel());
    assertEquals("S1", item1.getSeriesKey());
    assertEquals(0, item1.getSeriesIndex());
    assertEquals(dataset, item1.getDataset());
    assertEquals(0, item1.getDatasetIndex());

    LegendItem item2 = legendItems.get(1);
    assertEquals("S2", item2.getLabel());
    assertEquals("S2", item2.getSeriesKey());
    assertEquals(1, item2.getSeriesIndex());
    assertEquals(dataset, item2.getDataset());
    assertEquals(0, item2.getDatasetIndex());
}
 

/**
 * Tests cloning for a plot where the fixed legend items have been
 * specified.
 */
@Test
public void testCloning3() throws CloneNotSupportedException {
    XYPlot p1 = new XYPlot(null, new NumberAxis("Domain Axis"),
            new NumberAxis("Range Axis"), new StandardXYItemRenderer());
    LegendItemCollection c1 = new LegendItemCollection();
    p1.setFixedLegendItems(c1);
    XYPlot p2 = (XYPlot) p1.clone();
    assertTrue(p1 != p2);
    assertTrue(p1.getClass() == p2.getClass());
    assertTrue(p1.equals(p2));

    // verify independence of fixed legend item collection
    c1.add(new LegendItem("X"));
    assertFalse(p1.equals(p2));
}
 

/**
 * Returns the legend items for the plot.  Each legend item is generated by
 * the plot's renderer, since the renderer is responsible for the visual
 * representation of the data.
 *
 * @return The legend items.
 */
public LegendItemCollection getLegendItems() {
    if (this.fixedLegendItems != null) {
        return this.fixedLegendItems;
    }
    LegendItemCollection result = new LegendItemCollection();
    int count = this.datasets.size();
    for (int datasetIndex = 0; datasetIndex < count; datasetIndex++) {
        XYDataset dataset = getDataset(datasetIndex);
        if (dataset != null) {
            XYItemRenderer renderer = getRenderer(datasetIndex);
            if (renderer == null) {
                renderer = getRenderer(0);
            }
            if (renderer != null) {
                int seriesCount = dataset.getSeriesCount();
                for (int i = 0; i < seriesCount; i++) {
                    if (renderer.isSeriesVisible(i)
                            && renderer.isSeriesVisibleInLegend(i)) {
                        LegendItem item = renderer.getLegendItem(
                                datasetIndex, i);
                        if (item != null) {
                            result.add(item);
                        }
                    }
                }
            }
        }
    }
    return result;
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
public void testGetLegendItemSeriesIndex() {
    XYSeriesCollection d1 = new XYSeriesCollection();
    XYSeries s1 = new XYSeries("S1");
    s1.add(1.0, 1.1);
    XYSeries s2 = new XYSeries("S2");
    s2.add(1.0, 1.1);
    d1.addSeries(s1);
    d1.addSeries(s2);
    
    XYSeriesCollection d2 = new XYSeriesCollection();
    XYSeries s3 = new XYSeries("S3");
    s3.add(1.0, 1.1);
    XYSeries s4 = new XYSeries("S4");
    s4.add(1.0, 1.1);
    XYSeries s5 = new XYSeries("S5");
    s5.add(1.0, 1.1);
    d2.addSeries(s3);
    d2.addSeries(s4);
    d2.addSeries(s5);

    XYLineAndShapeRenderer r = new XYLineAndShapeRenderer();
    XYPlot plot = new XYPlot(d1, new NumberAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, d2);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("S5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * Returns a legend item for a series.
 *
 * @param datasetIndex  the dataset index (zero-based).
 * @param series  the series index (zero-based).
 *
 * @return The legend item.
 */
public LegendItem getLegendItem(int datasetIndex, int series) {

    CategoryPlot cp = getPlot();
    if (cp == null) {
        return null;
    }

    CategoryDataset dataset;
    dataset = cp.getDataset(datasetIndex);
    String label = getLegendItemLabelGenerator().generateLabel(dataset, 
            series);
    String description = label;
    String toolTipText = null; 
    if (getLegendItemToolTipGenerator() != null) {
        toolTipText = getLegendItemToolTipGenerator().generateLabel(
                dataset, series);   
    }
    String urlText = null;
    if (getLegendItemURLGenerator() != null) {
        urlText = getLegendItemURLGenerator().generateLabel(dataset, 
                series);   
    }
    Shape shape = new Rectangle2D.Double(-4.0, -4.0, 8.0, 8.0);
    Paint paint = getSeriesPaint(series);
    Paint outlinePaint = getSeriesOutlinePaint(series);
    Stroke outlineStroke = getSeriesOutlineStroke(series);

    LegendItem result = new LegendItem(label, description, toolTipText, 
            urlText, true, shape, true, paint, isDrawBarOutline(), 
            outlinePaint, outlineStroke, false, new Line2D.Float(), 
            new BasicStroke(1.0f), Color.black);
    if (this.gradientPaintTransformer != null) {
        result.setFillPaintTransformer(this.gradientPaintTransformer);
    }
    return result;
}
 

/**
 * Returns a legend item for a series.
 *
 * @param datasetIndex  the dataset index (zero-based).
 * @param series  the series index (zero-based).
 *
 * @return The legend item.
 */
public LegendItem getLegendItem(int datasetIndex, int series) {

    CategoryPlot p = getPlot();
    if (p == null) {
        return null;
    }

    // check that a legend item needs to be displayed...
    if (!isSeriesVisible(series) || !isSeriesVisibleInLegend(series)) {
        return null;
    }

    CategoryDataset dataset = p.getDataset(datasetIndex);
    String label = getLegendItemLabelGenerator().generateLabel(dataset, 
            series);
    String description = label;
    String toolTipText = null; 
    if (getLegendItemToolTipGenerator() != null) {
        toolTipText = getLegendItemToolTipGenerator().generateLabel(
                dataset, series);   
    }
    String urlText = null;
    if (getLegendItemURLGenerator() != null) {
        urlText = getLegendItemURLGenerator().generateLabel(dataset, 
                series);   
    }
    Shape shape = new Rectangle2D.Double(-4.0, -3.0, 8.0, 6.0);
    Paint paint = lookupSeriesPaint(series);
 
    LegendItem item = new LegendItem(label, description, toolTipText, 
            urlText, shape, paint);
    item.setSeriesKey(dataset.getRowKey(series));
    item.setSeriesIndex(series);
    item.setDataset(dataset);
    item.setDatasetIndex(datasetIndex);
    return item;
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    XYSeriesCollection d1 = new XYSeriesCollection();
    XYSeries s1 = new XYSeries("S1");
    s1.add(1.0, 1.1);
    XYSeries s2 = new XYSeries("S2");
    s2.add(1.0, 1.1);
    d1.addSeries(s1);
    d1.addSeries(s2);

    XYSeriesCollection d2 = new XYSeriesCollection();
    XYSeries s3 = new XYSeries("S3");
    s3.add(1.0, 1.1);
    XYSeries s4 = new XYSeries("S4");
    s4.add(1.0, 1.1);
    XYSeries s5 = new XYSeries("S5");
    s5.add(1.0, 1.1);
    d2.addSeries(s3);
    d2.addSeries(s4);
    d2.addSeries(s5);

    XYDifferenceRenderer r = new XYDifferenceRenderer();
    XYPlot plot = new XYPlot(d1, new NumberAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, d2);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("S5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    YIntervalSeriesCollection d1 = new YIntervalSeriesCollection();
    YIntervalSeries s1 = new YIntervalSeries("S1");
    s1.add(1.0, 1.1, 1.2, 1.3);
    YIntervalSeries s2 = new YIntervalSeries("S2");
    s2.add(1.0, 1.1, 1.2, 1.3);
    d1.addSeries(s1);
    d1.addSeries(s2);

    YIntervalSeriesCollection d2 = new YIntervalSeriesCollection();
    YIntervalSeries s3 = new YIntervalSeries("S3");
    s3.add(1.0, 1.1, 1.2, 1.3);
    YIntervalSeries s4 = new YIntervalSeries("S4");
    s4.add(1.0, 1.1, 1.2, 1.3);
    YIntervalSeries s5 = new YIntervalSeries("S5");
    s5.add(1.0, 1.1, 1.2, 1.3);
    d2.addSeries(s3);
    d2.addSeries(s4);
    d2.addSeries(s5);

    YIntervalRenderer r = new YIntervalRenderer();
    XYPlot plot = new XYPlot(d1, new NumberAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, d2);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("S5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * Returns a collection of legend items for the spider web chart.
 *
 * @return The legend items (never <code>null</code>).
 */
public LegendItemCollection getLegendItems() {
    LegendItemCollection result = new LegendItemCollection();
    if (getDataset() == null) {
        return result;
    }
    List keys = null;
    if (this.dataExtractOrder == TableOrder.BY_ROW) {
        keys = this.dataset.getRowKeys();
    }
    else if (this.dataExtractOrder == TableOrder.BY_COLUMN) {
        keys = this.dataset.getColumnKeys();
    }
    if (keys == null) {
        return result;
    }

    int series = 0;
    Iterator iterator = keys.iterator();
    Shape shape = getLegendItemShape();
    while (iterator.hasNext()) {
        Comparable key = (Comparable) iterator.next();
        String label = key.toString();
        String description = label;
        Paint paint = getSeriesPaint(series);
        Paint outlinePaint = getSeriesOutlinePaint(series);
        Stroke stroke = getSeriesOutlineStroke(series);
        LegendItem item = new LegendItem(label, description,
                null, null, shape, paint, stroke, outlinePaint);
        item.setDataset(getDataset());
        item.setSeriesKey(key);
        item.setSeriesIndex(series);
        result.add(item);
        series++;
    }
    return result;
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    XYSeriesCollection d1 = new XYSeriesCollection();
    XYSeries s1 = new XYSeries("S1");
    s1.add(1.0, 1.1);
    XYSeries s2 = new XYSeries("S2");
    s2.add(1.0, 1.1);
    d1.addSeries(s1);
    d1.addSeries(s2);

    XYSeriesCollection d2 = new XYSeriesCollection();
    XYSeries s3 = new XYSeries("S3");
    s3.add(1.0, 1.1);
    XYSeries s4 = new XYSeries("S4");
    s4.add(1.0, 1.1);
    XYSeries s5 = new XYSeries("S5");
    s5.add(1.0, 1.1);
    d2.addSeries(s3);
    d2.addSeries(s4);
    d2.addSeries(s5);

    XYDifferenceRenderer r = new XYDifferenceRenderer();
    XYPlot plot = new XYPlot(d1, new NumberAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, d2);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("S5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    XYSeriesCollection d1 = new XYSeriesCollection();
    XYSeries s1 = new XYSeries("S1");
    s1.add(1.0, 1.1);
    XYSeries s2 = new XYSeries("S2");
    s2.add(1.0, 1.1);
    d1.addSeries(s1);
    d1.addSeries(s2);

    XYSeriesCollection d2 = new XYSeriesCollection();
    XYSeries s3 = new XYSeries("S3");
    s3.add(1.0, 1.1);
    XYSeries s4 = new XYSeries("S4");
    s4.add(1.0, 1.1);
    XYSeries s5 = new XYSeries("S5");
    s5.add(1.0, 1.1);
    d2.addSeries(s3);
    d2.addSeries(s4);
    d2.addSeries(s5);

    XYBarRenderer r = new XYBarRenderer();
    XYPlot plot = new XYPlot(new XYBarDataset(d1, 1.0), new NumberAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, new XYBarDataset(d2, 2.0));
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("S5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    XYSeriesCollection d1 = new XYSeriesCollection();
    XYSeries s1 = new XYSeries("S1");
    s1.add(1.0, 1.1);
    XYSeries s2 = new XYSeries("S2");
    s2.add(1.0, 1.1);
    d1.addSeries(s1);
    d1.addSeries(s2);

    XYSeriesCollection d2 = new XYSeriesCollection();
    XYSeries s3 = new XYSeries("S3");
    s3.add(1.0, 1.1);
    XYSeries s4 = new XYSeries("S4");
    s4.add(1.0, 1.1);
    XYSeries s5 = new XYSeries("S5");
    s5.add(1.0, 1.1);
    d2.addSeries(s3);
    d2.addSeries(s4);
    d2.addSeries(s5);

    XYDotRenderer r = new XYDotRenderer();
    XYPlot plot = new XYPlot(d1, new NumberAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, d2);
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("S5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * A check for the datasetIndex and seriesIndex fields in the LegendItem
 * returned by the getLegendItem() method.
 */
@Test
public void testGetLegendItemSeriesIndex() {
    XYSeriesCollection d1 = new XYSeriesCollection();
    XYSeries s1 = new XYSeries("S1");
    s1.add(1.0, 1.1);
    XYSeries s2 = new XYSeries("S2");
    s2.add(1.0, 1.1);
    d1.addSeries(s1);
    d1.addSeries(s2);

    XYSeriesCollection d2 = new XYSeriesCollection();
    XYSeries s3 = new XYSeries("S3");
    s3.add(1.0, 1.1);
    XYSeries s4 = new XYSeries("S4");
    s4.add(1.0, 1.1);
    XYSeries s5 = new XYSeries("S5");
    s5.add(1.0, 1.1);
    d2.addSeries(s3);
    d2.addSeries(s4);
    d2.addSeries(s5);

    XYBarRenderer r = new XYBarRenderer();
    XYPlot plot = new XYPlot(new XYBarDataset(d1, 1.0), new NumberAxis("x"),
            new NumberAxis("y"), r);
    plot.setDataset(1, new XYBarDataset(d2, 2.0));
    /*JFreeChart chart =*/ new JFreeChart(plot);
    LegendItem li = r.getLegendItem(1, 2);
    assertEquals("S5", li.getLabel());
    assertEquals(1, li.getDatasetIndex());
    assertEquals(2, li.getSeriesIndex());
}
 

/**
 * Returns the legend items for the plot.  Each legend item is generated by
 * the plot's renderer, since the renderer is responsible for the visual
 * representation of the data.
 *
 * @return The legend items.
 */
@Override
public LegendItemCollection getLegendItems() {
    if (this.fixedLegendItems != null) {
        return this.fixedLegendItems;
    }
    LegendItemCollection result = new LegendItemCollection();
    for (XYDataset dataset : this.datasets.values()) {
        if (dataset == null) {
            continue;
        }
        int datasetIndex = indexOf(dataset);
        XYItemRenderer renderer = getRenderer(datasetIndex);
        if (renderer == null) {
            renderer = getRenderer(0);
        }
        if (renderer != null) {
            int seriesCount = dataset.getSeriesCount();
            for (int i = 0; i < seriesCount; i++) {
                if (renderer.isSeriesVisible(i)
                        && renderer.isSeriesVisibleInLegend(i)) {
                    LegendItem item = renderer.getLegendItem(
                            datasetIndex, i);
                    if (item != null) {
                        result.add(item);
                    }
                }
            }
        }
    }
    return result;
}